"Exactly," Bill said. "She'd be the only one who'd know what Severus is up to if the rest of us don't, especially you, Remus. Perhaps it's some sort of repentance; I'm not sure."
He took a rather large sip of his brandy and looked towards the door.
"If you prefer, I can leave you two to chat in private. I'm sure you're got a good deal to catch up on. I don't mind owling McGonagall if you'd like, Harry. I think I was a favorite of hers during my Hogwarts days, or at least I hope I was. She probably wouldn't mind an update, but if you want, you can certainly contact her instead."